HK Zegaa Co., Ltd
CCTV Lens, optical coatings filters, camera lens, Vari focal Lens, Auto Iris, Manufacturer and Supplier - China(CN)
Optical IR cut-off filter (small round or quadrate pieces) (IR Cut-off filter)
Infrared (IR) cut-off filters are used with color CCD/CMOS imagers to produce color images. An IR cut-off filter blocks the transmission of the infrared while passing the visible light, which will increase the image quality and the true colour.
IR cut-off filters are mainly applied to CCD/CMOS Imaging System, such as Mobile camera, digital camera, PC camera, CCTV@camera, Visual phone and Video door phone etc.
Substrate--------------------D263T/B270/BK7
Round type size-------------p3.6~p30 mm (0.05 mm)
Thickness--------------------0.3mm, 0.4mm, 0.55mm, 0.7mm, 1.1mm
Surface Quality--------------40/20, 60/40
IR Coating--------------------T50% = 640/645/650/660nm10 nm
400~420 nm-----------------Tmin.?85%
420~620 nm-----------------Tmin?88%, Tave?90%
65010nm---------------------T=50%
700~1000 nm----------------Tmax?2%, Tave